1. (n.) A genus of herbs with compound white or bluish flowers; starwort; Michaelmas daisy.

2. (n.) A plant of the genus Callistephus. Many varieties (called China asters, German asters, etc.) are cultivated for their handsome compound flowers.

Golgi apparatus aster basal body cell membrane central apparatus central body centriole centroplasm centrosome centrosphere chloroplast chromoplast cytocentrum flagella kinoplasm microbody microcentrum mitochondrion pili plasmodesmata plastid plastosome ribosome spherosome spindle fibers vacuole